Welcome to THAC0 . . . with Advantage! We’re two friends that have been playing D&D a long time. While we both love lots of other RPGs, D&D still encourages us to spend our currencies.
Multiple classes have resources they can use, but what happens when you want to manipulate the narrative outside of what your character can do? What happens when you’re running a game, and your combat just isn’t unfolding in a satisfying manner, but you don’t quite want to rebuild an encounter on the fly. That’s where metacurrencies can come in handy.